Polyvinyl Alcohol (PVA) - Hot Grade
Polyvinyl Alcohol (PVA) hot grade is a water-soluble synthetic polymer with a high degree of hydrolysis, typically ranging from 98% to 99%. It is characterized by its ability to dissolve effectively in hot water, making it suitable for various industrial applications. This grade is produced through the hydrolysis of polyvinyl acetate, resulting in a polymer that is versatile and biodegradable.
The hot grade PVA exhibits excellent film-forming, emulsifying, and adhesive properties. It is widely used in the textile industry for sizing and finishing, as well as in the paper industry to enhance strength and improve surface coating. Its superior bonding characteristics make it an ideal choice for adhesives and coatings.
In chemical terms, PVA hot grade has a high molecular weight, which contributes to its tensile strength, thermal stability, and chemical resistance. It is compatible with a wide range of fillers, plasticizers, and additives, making it adaptable for tailored applications.
Environmentally, PVA is non-toxic, biodegradable, and safe for human and aquatic life, which adds to its appeal in eco-friendly applications. Its versatility and thermal solubility make it essential in fields such as construction, packaging, and pharmaceuticals.